On Thu, 9 Nov 2023 09:51:18 -0800
Josh Poimboeuf wrote:
> > I guess I'm not fully understanding what the cond rescheds are for. But
> > would an IPI to all CPUs setting NEED_RESCHED, fix it?
>
> If all livepatch arches had the ORC unwinder, yes.
>
> The problem is that frame pointer (and simi
Josh Poimboeuf writes:
> On Thu, Nov 09, 2023 at 02:50:48PM -0800, Ankur Arora wrote:
>> >> I guess I'm not fully understanding what the cond rescheds are for. But
>> >> would an IPI to all CPUs setting NEED_RESCHED, fix it?
>>
>> Yeah. We could just temporarily toggle to full preemption, when
On Thu, Nov 09, 2023 at 02:50:48PM -0800, Ankur Arora wrote:
> >> I guess I'm not fully understanding what the cond rescheds are for. But
> >> would an IPI to all CPUs setting NEED_RESCHED, fix it?
>
> Yeah. We could just temporarily toggle to full preemption, when
> NEED_RESCHED_LAZY is always up
Josh Poimboeuf writes:
> On Thu, Nov 09, 2023 at 12:31:47PM -0500, Steven Rostedt wrote:
>> On Thu, 9 Nov 2023 09:26:37 -0800
>> Josh Poimboeuf wrote:
>>
>> > On Tue, Nov 07, 2023 at 06:16:09PM -0500, Steven Rostedt wrote:
>> > > On Tue, 7 Nov 2023 13:56:53 -0800
>> > > Ankur Arora wrote:
>>
On Thu, Nov 09, 2023 at 12:31:47PM -0500, Steven Rostedt wrote:
> On Thu, 9 Nov 2023 09:26:37 -0800
> Josh Poimboeuf wrote:
>
> > On Tue, Nov 07, 2023 at 06:16:09PM -0500, Steven Rostedt wrote:
> > > On Tue, 7 Nov 2023 13:56:53 -0800
> > > Ankur Arora wrote:
> > >
> > > > This reverts commit
On Thu, 9 Nov 2023 09:26:37 -0800
Josh Poimboeuf wrote:
> On Tue, Nov 07, 2023 at 06:16:09PM -0500, Steven Rostedt wrote:
> > On Tue, 7 Nov 2023 13:56:53 -0800
> > Ankur Arora wrote:
> >
> > > This reverts commit e3ff7c609f39671d1aaff4fb4a8594e14f3e03f8.
> > >
> > > Note that removing this
On Tue, Nov 07, 2023 at 06:16:09PM -0500, Steven Rostedt wrote:
> On Tue, 7 Nov 2023 13:56:53 -0800
> Ankur Arora wrote:
>
> > This reverts commit e3ff7c609f39671d1aaff4fb4a8594e14f3e03f8.
> >
> > Note that removing this commit reintroduces "live patches failing to
> > complete within a reasona
Steven Rostedt writes:
> On Tue, 7 Nov 2023 13:56:53 -0800
> Ankur Arora wrote:
>
>> This reverts commit e3ff7c609f39671d1aaff4fb4a8594e14f3e03f8.
>>
>> Note that removing this commit reintroduces "live patches failing to
>> complete within a reasonable amount of time due to CPU-bound kthread
On Tue, 7 Nov 2023 13:56:53 -0800
Ankur Arora wrote:
> This reverts commit e3ff7c609f39671d1aaff4fb4a8594e14f3e03f8.
>
> Note that removing this commit reintroduces "live patches failing to
> complete within a reasonable amount of time due to CPU-bound kthreads."
>
> Unfortunately this fix dep
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